An idea to make absolute sizes for indices.breaker.total.limit critically deprecated. Supporting https://github.com/elastic/dev/issues/2558 parseHeapRatioOrDeprecatedByteSizeValue for indices.breaker.total.limit
:MRJobConfig.REDUCE_JAVA_OPTS); heapMb=JobConf.parseMaximumHeapSizeMB(javaOpts); heapMb,JobConf.parseMaximumHeapSizeMB(cmd));